These berry oatmeal crumble bars are the perfect healthy dessert, snack, or even breakfast! They're a wonderful way to use up leftover summer berries too!
Preheat oven to 350℉. Spray a 8x8 glass baking dish with nonstick spray. Set aside.
In a medium bowl, combine the flour, oats, baking powder, cinnamon and salt. Whisk to combine.
In a separate bowl, whisk together the egg, brown sugar, vanilla, and coconut oil until smooth. Add the dry ingredients to the wet, and stir until mixture turns into a dough. Press ⅔ of the mixture into the bottom of the pan to form the crust. Set aside.
In a medium bowl, combine the berries, cornstarch, lemon juice, and maple syrup. Gently stir until mixture is completely combined. Pour berries and their juices over the crust. Smooth out with a spoon or spatula so they're evenly distributed.
Top with remaining crust/crumble mixture, crumbling it evenly over the berries.
Bake for 25-50 minutes or until crust is golden on the edges. Let cool completely before cutting! Unless you want to serve them warm with vanilla ice cream of course!